Google Glass has been designed in such a way that it makes it obvious that the wearer isn't wearing a regular pair of glasses which means that it is not very discreet. This can be detrimental to the wearer if they were to encounter hostility from others who might not appreciate the technology due to privacy concerns. But this might change in the near future, according to a new patent filing by Google of an "ornamental design for a wearable display device".

The patent depicts a pair of glasses that look very similar to "normal" optical glasses. That would result in the project and prism portion of Google Glass be positioned in the inner-part of the frame.

To mark World Diabetes Day today, diabetes experts and groups are urging people to be proactive about their health and get tested for the disease. For those people who live with diabetes, doctors are asking people to look after themselves by ensuring they are taking the appropriate steps to combat the risks of the disease. One risk the people who suffer from diabetes face is the possibility of blindness. Experts say people that suffer from diabetes should get regular eye exams in order to detect early symptoms of eye disease and enable effective treatment.

Fluctuating blood sugar levels can damage the retina, causing blurred or distorted vision and potential loss of sight if left untreated – a condition called diabetic retinopathy. "By 2030, diabetes could become the leading cause of blindness," says Brian Doolan, CEO of The Fred Hollows Foundation. Doolan says within two decades an estimated 156 million people could be at risk, 4 out of 5 of whom won’t have access to adequate eye care services. "Urgent action is needed to help people avoid blindness from diabetic retinopathy through access to a sight-saving annual eye examination." Doolan says even Australians living with diabetes are not aware that they need to have their eyes screened regularly and some have already gone blind.

England cricketer Kevin Pietersen was on Tuesday awarded undisclosed libel damages over an advertisement that suggested he had tampered with his bat during this year's Ashes series against Australia. Pietersen brought action in London's High Court against the "serious and defamatory allegation" after the advert was published on Specsavers' social media accounts as well as in newspapers and magazines. The advert carried the statement "'Bat tampering' in the #Ashes? Apparently Hot Spot should've gone to Specsavers", which was accompanied by a picture of Pietersen.

Pietersen was left outraged in August after Australian network Channel 9 used images of his dismissal in the third Ashes Test in a report suggesting players were using silicone tape on their bats to prevent edges appearing on Hot Spot.

The batsman's solicitor told the court the allegation of bat tampering had no foundation. Specsavers apologised over the incident last week and accepted Pietersen did not behave as they had suggested, and said they had already removed the advert from circulation. Pietersen will donate the money. He revealed on Twitter: "And just so you know.. All the damages I've received from Specsavers will be going to the @JCEtrust ..". JCE Trust is a cancer charity.

World Sight Day is an annual day of awareness to focus global attention on blindness and vision impairment. It will take place this year on Thursday 10 October.

World Sight Day is held annually on the second Thursday in October. World Sight Day was established by the World Health Organisation (WHO) in 2000 and is the main advocacy event for the prevention of blindness and for Vision 2020: The Right to Sight, a global initiative to prevent avoidable blindness, created by the WHO and the International Agency for the Prevention of Blindness.

2013 is an important year as it marks the launch of a new WHO Global Action Plan on the prevention of avoidable blindness and vision impairment. The Global Action Plan identifies its purpose as increasing access to comprehensive eye care services that are integrated into health systems and aims to reduce blindness and vision impairment by 25 per cent by 2019.

In keeping with the main thrust of this new Global Action Plan, the theme for World Sight Day 2013 is Universal Eye Health. This year's World Sight Day campaign call to action is Get your eyes tested.